In Exercises 27 to 32, use SSS, SAS, ASA, or AAS to prove that the triangles are congruent.
Given: 

Prove: 

To prove:
The triangle
Given:
The triangles
Figure
From the figure
And,
Property used:
If two lines intersect, then the vertical angles formed are congruent.
Approach:
Consider the triangles,
From the given data,
The angles
Since, the angle
And the line
Since the lines
Since, the line
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